Category Archives: Hackaday Columns

Hackaday Podcast 045: Raspberry Pi Bug, Rapidly Aging Vodka, Raining on the Cloud, and This Wasn’t a Supercon Episode

Hackaday editors Mike Szczys and Elliot Williams talk over the last three weeks full of hacks. Our first “back to normal” podcast after Supercon turns out to still have a lot of Supercon references in it. We discuss Raspberry Pi 4’s HDMI interfering with its WiFi, learn the differences between …read more

Continue reading

Posted in Cloud Print, CoreXY, ESP32, Hackaday Columns, leds, podcast, Podcasts, Raspberry Pi 4, WiFi Jammer | Leave a comment

Retrotechtacular: The Gyro-X

In the 1950s, American automobiles bloomed into curvaceous gas-guzzlers that congested the roads. The profiles coming out of Detroit began to deflate in the 1960s, but many bloat boats were still sailing the streets. For all their hulking mass, these cars really weren’t all that stable — they still had …read more

Continue reading

Posted in Alex Tremulis, gyro-x, gyronaut x-1, gyroscopic car, Hackaday Columns, Lane Motor Museum, Retrotechtacular, Thomas Summers | Leave a comment

The Story of A Secret Underground Parisian Society

Deep in the heart of Paris, a series of underground tunnels snakes across the city. They cross into unkept public spaces from centuries ago that have since vanished from collective memory – abandoned basements, catacombs, and subways hundreds of miles apart.

Only a few groups still traverse these subterranean streets. …read more

Continue reading

Posted in clock hacks, Hackaday Columns, horology, Paris, urban exploration | Leave a comment

AMSAT CubeSat Simulator Hack Chat

Join us on Wednesday, December 4th at noon Pacific for the AMSAT CubeSat Simulator Hack Chat with Alan Johnston!

For all the lip service the world’s governments pay to “space belonging to the people”, they did a pretty good job keeping access to it to themselves for the first 50

…read more

Continue reading

Posted in cubesat, Hackaday Columns, PocketQube, satellite, simulator, solar, space, telemetry, testing, The Hack Chat | Leave a comment

DSP Spreadsheet: Talking to Yourself Using IQ

We’ve done quite a bit with Google Sheets and signal processing: we’ve generated signals, created filters, and computed quadrature signals. We can pull all that together into an educational model for two SDRs talking to each other, but it’s going to require two parts: modulation and demodulation. Guess what? We …read more

Continue reading

Posted in digital signal processing, dsp, Hackaday Columns, quadrature mixer, spreadsheet, tool hacks | Leave a comment

Retrotechtacular: The Art of the Foundry

Mention the term “heavy industry” and the first thing to come to mind might well be the metal foundry. With immense machines and cauldrons of molten metal being shuttled about by crane and rail, the image of the foundry is like a scene from Dante’s Inferno, with fumes filling …read more

Continue reading

Posted in Boiler, cast iron, casting, fettling, fitting, foundry, Hackaday Columns, Retrotechtacular, steam, steel | Leave a comment

The Strain of Flu Shot Logistics

Did you get a flu shot this year? How about last year? In a world of next-day delivery and instant downloads, making the yearly pilgrimage to the doctor or the minute clinic feels like an outdated concept. Even if you get your shots free at the office, it’s still a …read more

Continue reading

Posted in cdc, chemistry hacks, egg, fda, flu, flu shots, Hackaday Columns, influenza, Interest, Jonas Salk, logistics, Medical hacks, Original Art, virus | Leave a comment

Mike Harrison Knows Everything About LEDs

Driving an LED and making it flash is probably the first project that most people will have attempted when learning about microprocessor control of hardware. The Arduino and similar boards have an LED fitted, and turning it on and off is a simple introduction to code. So it’s fair to …read more

Continue reading

Posted in 2019 Hackaday Superconference, cons, Hackaday Columns, led, led hacks, Mike Harrison | Leave a comment

Tales from the Sysadmin: Dumped into the Grub Command Line

Today I have a tale of mystery, of horror, and of hope. The allure of a newer kernel and packages was too much to resist, so I found myself upgrading to Fedora 30. All the packages had downloaded, all that was left was to let DNF reboot the machine and …read more

Continue reading

Posted in grub, Hackaday Columns, linux, linux hacks, Original Art, Skills, Tales from the Sysadmin, Tech Noir | Leave a comment

Texas Tesla Tower Titillates

One of the nice things about a road trip is you often get to see something that really surprises you. A recent trip through Texas may have resulted in my second most surprising sighting. There’s a strange tower that looks oddly like a Tesla tower in the middle of rural …read more

Continue reading

Posted in Hackaday Columns, power, science, tesla, textas, tower, wardenclyffe tower, Wireless power, zenneck | Leave a comment